Container



March 23, 1937. A. KARLSSQN-YGGER "2,074,824

CONTAINER Filed March 16, 1955 2 Sheets-Sheet 1 Fig.3

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A. KARLSSON-YGGER CONTAINER Filed March 16, 1935 2 Sheets-Sheet 2 INVEIIZ'OR.

ATTORNEYS.

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This invention relates to containers, and more particularly to containers formed of paper or similar suitable material.

'li'he object of the invention is to provide a 5 new, simple, and emcient container made of flexible material so shaped that the upper part thereof is folded into intermediate opposite contacting portions relative to which the remaining parts of the upper portion are overlapped.

Another object of the invention is to provide a container of the foregoing character in which the closed top part can be sealed in a substantiah 1y straight line.

An additional object of the invention is to provide a container of the foregoing character in which contacting oppositely disposed parts are so dimensioned that the overlapping parts are dimensioned to overlap both the contacting parts and each other.

A further object of the invention is to provide in a container of the foregoing character, a top portion so folded and bent that the major portion oi the container maintains a substantially uniform cylindrical shape both in sealed and unsealed condition.

A further object of the invention is to provide a container of the foregoing character in which the upper part of the generally cylindrical body portion is slightly folded into polygonal form.

w A still further object of the invention is to provide a container of the foregoing character in which a portion or the top part is provided with extensions which are adapted to be folded over the remaining parts in sealed position to aid in sealing the container.

In accordance with theinvention, a blank of paper or other suitable material has its upper portion shaped or scored or otherwise treated to form fold or bend lines about which this upper part can be folded or bent to seal the container when the container has been rolled and secured in cylindrical form. Broadly speaking, the invention provides some lines so fashioned that a pair of oppositely disposed intermediate portions are provided in the topmost part of the blank. Extend ing downwardly from these portions are portions the bottom of which determine the top boundary of the generally cylindrical part of the container. These extensions of the intermediate parts may have parallel longitudinal edges or may have slightly flared longitudinal edges, and the bottom edge of these extending portions may be either curved or straight, as desired. Between the intermediate portions and their extensions are a number of portions, some of which are of (ill. Wi lth) triangular shape, some of which are of sectorlike shape, and. some oi which are of irregular shape. A. pair of triangular portions are provided between the extensions with-one side of each triangular portion contiguous with another and with the extensions to complete the top boundary of the generally cylindrical body part of the corn tainer.

When the blank has been formed into a cylinder and a bottom inserted therein, the container can be closed by so folding the upper scored portion thereof that the two oppositely disposed intermediate portions are brought together into substantially flat contact one with another. This contact will be along a diameter of the container, but the length of the contact will be considerably shorter than the diameter of the container. When these two rectangular portions have been brought together, the expanse of scored top part between the ends of the intermediate portions and their extensions are folded so that they overlap the intermediate portions and their extensions on each side of the container. When the extensions of the intermediate portions have substantially parallel longitudinal walls, the overlapping parts between .the intermediate portions and their extensions will proniiptly meet at the center line of the intermediate portions. However, when the extensions of the intermediate portions have tapering longitudinal walls, one expanse of scored top part between intermediate portions will overlap each side of the intermediate portions approximately the full length of the intermediate portions, while the other expanse oi scored part between the intermediate portions will in turn lap over the intermediate portions and the previously overlapped parts. In either condition, the overlapped parts may be held in place by a suitable metallic clip by reason of which a good airtight and liquid-tight. sealing is secured. If desired, however, substantially half of the upper part of the blank may be provided with longitudinally extending tab parts which, when the parts are folded into sealing position, can be bent over the parts not provided with tabs, and the entire sealing area locked in place by means of wire staples or other suitable fastening devices.

In the arrangement just described, it will be understood that the top boundary of the generally cylindrical portion is in effect scalloped, the scallops being formed by curved boundary lines of the extensions of the intermediate portions and curved boundary linesof the contiguous triangular portions, while triangular portions closely resemble sectors, and which may be called for clarity sector-like portions. If desired, however, the extensions of the intermediate portions and the separating contiguous triangular portions may have flat bases, thereby defining a straight top boundary for the body of the container, and in order that the top part can be folded into proper sealing condition, it may be necessary to score the body part of the container with longitudinal score lines for a short distance as a result of which the generally cylindrical part of the body of the container merges into a polygonalshaped body part.

Other features, objects, and-advantages of the invention will become apparent by reference to the following detailed description of the accompanying drawings, wherein Fig. 1 is a plan viewof a blank scored for proper folding;

Fig. 2 is a similar view of a modified form of blank;

Fig. 3 is a similar view of a still further modification;

Fig. 4 is a perspective view in partially closed position of a container made from the blank shown in Fig. 1;

Fig. 5 is a perspective view of a container made from a blank as shown in Fig. 1 in sealed position;

Fig. 6 is a plan view of the container shown in Fig. 5;

Fig. 7 is a perspective view of part of a container made from a blank of a type shown in Fig. 2;

Fig. 8 is a similar view of a container made from a blank as shown in Fig. 3 in which the sealing tabs have been omitted;

Fig. 9 is a plan view of the device shown in Fig.

Fig. 10 is a fragmentary showing of the manner of inserting a bottom in the container; and

Fig. 11 is a similar view of the device with the bottom locked in place.

Referring now to the drawings and particularly to Fig. 1, A indicates a blank of paper, cardboard, or some other suitable flexible material. This blank has its upper part scored or otherwise treated to provide a plurality of fold or bend lines. These lines are so disposed as to provide opposite intermediate rectangular portions l0 and II, and a fragmentary portion l2. Extending downwardly of the blank from the portions l0 and H are what may be termed extension portions l4 and I5 respectively, and a fragmentary portion l6. These fragmentary portions l2 and I6 are provided to overlap the portions II and I5 respectively when the blank is rolled into cylindrical form, thereby providing a short strip to which adhesive material can be secured for holding the blank in cylindrical form. The bottom edges or boundaries of portions l4 and I5 are curved as shown.

Contiguous to each portion l4 and I5 and situated therebetween are pairs of sector-like portions, one pair being represented at I! and I8, and another pair at l9 and 2D. Separating the converging walls of the sector-like portions from the extension portions, are triangular portions 2|, 22, 23, and 24. Between the pairs of sectorlike portions l1 and |8 are irregular shaped portions 25 and 26, while similar portions 21 and 28 are disposed between the pairs of sector-like porwith fold lines as shown and described, the blank is in condition to be formed into a cylinder. Such 'operation is accomplished by rolling it into cylindrical form, in which form it is secured by suitable adhesive material applied to an area, the width of which is defined by the fragmental portions l2 and I6, which, as before stated, overlap the parts II and I5. Previous to rolling into cylindrical form, a strip of the bottom part of the blank may be treated with adhesive material for the attachment of a bottom member in the following manner. As shown in Figs. 11 and 12, the bottom may be made of a disc 35 having a depending annular flange 36. This disc is inserted into the cylinder until the top surface thereof reaches the top edge of the portion treated with adhesive material. When so properly positioned, the flange adheres to the inner wall of the cylinder, and the bottom part of this wall may be folded upon itself and then secured to the inner wall of the flange by adhesive material into the position indicated at 31 in Fig. 12. This arrangement provides a good air-tight and liquid-tight seal for the bottom of the container.

The container may be treated with paraffin or any other suitable material for protecting the material of the container from attack by the liquid to be held in the container.

Suitable liquid may be introduced into a container so made to the proper level, which level will, under ordinary conditions, be approximately at the scalloped top boundary of the generally 'cylindrical part or body portion of the container.

When the container has been filled to the proper height, it may be closed in the following manner. First,theintermediaterectangular portions l0 and H are drawn together until they are in substantially flat contact along a diameter of the cylinder, as shown in Fig. 4. Due to this drawing together of the rectangular portions, their extensions l4 and I5 become slightly concaved, and at the same time the expanse of scored top portion between the ends of the rectangular parts and their extensions become folded into overlapping relation, as shown in Fig. 4. The respective positions of the above parts may be followed by comparison between the reference characters of Fig. 1 and those of Fig. 4. Finally, the overlapping of these expanses is completed, at which time the overlapping parts approximately meet at the center line of the contacting .rectangular portions, in which position they may be secured by means of a metal clip 40 which is of substantially U -shaped cross-section. This clip may be weakened along a center line 4 whereby a part thereof can be spread and then bent back upon the remaining part to liberate half of the overlapped portions so that the contents of the container can lie dispensed.

In the folding of the parts to the positions shown in Figs. 4 and 5, various portions are so folded that a seal along a substantially straight line ban be obtained. The irregular shaped portions 29 and 30 are folded flat against the outside of the rectangular portions I I and I0 respectively. The same is true of similar portions 32.

and 3|. The triangular portion 22 is folded unden the sector-like portion l8; triangular portion 2! under the sector-like portion I1; the triangular portion 23 under the sector-like portion l9; and the triangular portion 24 under the sector-like portion 20. The portions 25, 26, 21, and 28 are folded flat against the irregular shaped portions 29, 30, 3|, and 32 respectively and partially against each other in pairs. In the final tions folded to overlap the fiat contact parts.

aovaeaa condition, that is in sealed condition, all of the sector-like portions i'i, it, i9, and Eli, and the extensions Hi and it, are concaved so that the uniform cylindrical shape of the body of the container can be maintained.

In Fig. 2 a blank somewhat similar to that of Fig. 1 is shown, the blank B having score lines similar to those of blank A, with the exception that the bottom boundary lines of the portions it, ill, it, Hi, iii, 20', and it. are straight instead of curved. In addition, score lines M, ti, d2, M, M, and db extending downwardly into the body of the blank a slight distance are provided. The folding of this blank after it has been secured in cylindrical form is accomplished in the same way as that described in connection with Figs. 1, 4, and the only difierent result being that the uppermost part of the body portion of the container assumes a somewhat polygonal shape due to the score lines it to ill inclusive before described and to the straight boundary lines. In addition, the blank of Fig. 2 is provided with upstanding tabs bi], bi, b2, b3, and M, which, as shown, extend over half of the portions of the folded part of the container, or in other words, extend over one side of the folded portions, considering the extension i l and the intermediate rectangular portion iil' as the midsection of one side. The purpose of these tabs is evident from Fig. 7, wherein it is shown that when the container is folded to sealed position the tabs may be folded over as indicated at fill and locked in place by means of a wire staple 66 or any other suitable arrangement. These tabs may be omitted, however, and a metal clip used in the manner previously described.

In the modification shown in Fig. 3, the parts portions ill, M8, M9, and IN a slight bit, in that one side of each portion is made longer than in the portions shown in Fig. 1. The container of this form is folded in the same manner as that described in connection with Figs. 1, 4, and 5, but since the portions ill! and iii are of shorter lateral length than the portions ill and ii, it follows that the parts or portions separating the parts Hit and ill and parts lit and M5 overlap the parts illiland iii to a greater extent than in the previous embodiment. Thus, one group of connected portions are folded to substantially completely overlap the contacting parts iii) and l i II, and in turn the other connected portions are folded to almost completely overlap these same contacting parts lit and ill, but also to overlap the previously mentioned parts which are in engagement with these intermediate portions. This overlap arrangement is shown clearly in Fig. 8, wherein the parts are held together by a clip ill.

. From the foregoing it will be seen that the present invention in any form illustrated provides a container the top portion of which is provided with folded lines so disposed that opposite intermediate portions can be brought into fiat contact with each other, and with the connecting portions between these contacting por- In tbs way, a substantially linear seal can be made.

It will be apparent that the invention can be modified to include changes not shown in any of the figures of the drawings, in view of which the invention is to be limited only by the scope of the following claims.

I claim:

1. A container of the class described having a generally cylindrical body portion and having a top part scored for folding to close the container, said top part having oppositely disposed intermediate portions movable tially flat contact one with the other, and connecting portions between said intermediate portions, said connecting portions being movable into overlapping relation to said contacting in-- termediate portions.

2. A container of the class described having a generally cylindrical body portion and having a top part scored for folding to close the container, said top part having oppositely disposed intermediate portions movable into substantially flat contact one with the other and having extensions of said intermediate portions extending from the bottoms of the intermediate portions to the top of the body portion, said top part being provided with connecting portions between said intermediate portions and between their extensions, said connecting portions being foldable into overlapping relation to said intermediate portions and their extensions.

3. A container of the class described having a generally cylindrical body portion and having a top part scored for folding to closethe containei, said top part having oppositely disposed intermediate portions movable into substantially flat contact one with the other and having 1ongitudinal extensions of said intermediate portions extending from the bottoms of the intermediate portions to the top of the body portion, said top part having portions connecting said intermediate portions and connecting their extensions, said connecting port ions being movable into overlapping relation to said intermediate portions and their extensions, parts of said connecting portions being of substantially sector-like shape, said extensions having curved bottom edges contiguous with the curved edges of said sector-like portions whereby said cylindrical body portion is provided with a scalloped top boundary edge.

4:. A container of the class described having a generally cylindrical body portion and having a top part scored for folding to close the container, said top part having oppositely disposed intermediate portions movable into substantially flat contact one with the other and having extension portions extending from the bottoms of said intermediate portions to the top of the generally cylindrical body portion,said top part having connecting portions between said intermediate portions and between their extensions, said connecting portions being foldable to overlap said intermediate portions and their extensions on each side thereof with one set of connecting portions substantially meeting another set intermediate the ends of said intermediate portions.

5. A container of the class described having a enerally cylindrical body portion and having a top part scored for folding to close the container, said top part having oppositely disposed intermediate portions movable int'o substantially flat contact one with the other and having extension portions, said extension portions extending from the bottoms of the intermediate portions to the top of the body portion, said intermediate porintosubstantions and their extensions having longitudinally slanting side edges, said top part having connecting portions between the intermediate portions and between their extensions, said connecting portions being foldable to overlap the contacting intermediate portions and their extensions and to partially overlap one connecting portion with the other.

6. A container of the class described having a generally cylindrical body portion and having a top part scored for folding to close the container,

said generally cylindrical body portion being provided with longitudinal score lines extending partially downwardly from the top thereof, said top part being provided with oppositely disposed intermediate portions movable into substantially fiat contact one with another and with longitudinally extending extensions of said intermediate portions connecting the bottoms of the intermediate portions with the top of the body portion, said top part being provided with connecting portions between said intermediate portions and between their extensions, said connecting portions being foldable to overlap said intermediate portions and their extensions on each side thereof, the bottom of said foldable portions lying in a single plane cross-axially of the conminer whereby when the container is closed the upper part of the generally cylindrical portion is modified into a polygonal cross-sectional shape.

7. A container of the class described having a generally cylindrical body portion and having a top part scored for folding to close the container, said generally cylindrical body portion being provided with longitudinal score lines extending partially downwardly from the top thereof, said top part being provided with oppositely disposed intermediate portions movable into substantially flat contact one with another and with longitudinally extending extensions of said intermediate portions connecting the bottoms of the intermediate portions with the top of the body portion, said top part being provided with connecting portions between said intermediate portions and between their extensions, said connecting portions being foldable to overlap said intermediate portions and their extensions on each side thereof, the bottom of said foldable portions lying in a single plane cross-axially of the container whereby when the container is closed the upper part of the generally cylindrical portion is modified into a polygonal cross-sectional shape, a part of the top of said container being provided with tabs foldable over the opposite parts of the container, and means for locking said tabs in foldedover position to seal the container.

8. A container of the class described having a generally cylindrical body portion and having a top part scored for folding to close the container, said top part having oppositely disposed intermediate portions movable into substantially flat contact one with the other and having extension portions extending from the bottoms of said intermediate portions to the top of the generally cylindrical body portion,-said top part having connecting portions between said intermediate portions and between their extensions, said connecting portions being foldable to overlap said intermediate portions and their extensions on each side thereof with one set of connecting portions substantially meeting another set intermediate the ends of said intermediate portions, a part of the top of said container being provided with tabs foldable over the opposite parts of the container, and means for locking said tabs in folded-over position to seal the container.

ALBERT KARLSSON-YGGER. 

